binutils-gdb/ld
Phil Blundell 7dc542b23c 2001-01-01 Philip Blundell <philb@gnu.org>
* ld-undefined/weak-undef.exp: New test.
	* ld-undefined/weak-undef.s, ld-undefined/weak-undef.t: Supporting
	files for above.
2001-01-01 14:54:03 +00:00
..
emulparams * emulparams/elf32ppc.sh (OTHER_READWRITE_SECTIONS): 2000-12-12 20:15:21 +00:00
emultempl Add --no-default-excludes option for PE targets 2000-12-26 20:55:30 +00:00
po Add --no-default-excludes option for PE targets 2000-12-26 20:55:30 +00:00
scripttempl * scripttempl/i386go32.sc: Use PROVIDE with _etext, _edata, _end. 2000-12-06 16:39:51 +00:00
testsuite 2001-01-01 Philip Blundell <philb@gnu.org> 2001-01-01 14:54:03 +00:00
acinclude.m4
aclocal.m4
ChangeLog Fix problems with new EXACTLY_TWO_DASHES command line switch option. 2000-12-31 19:56:04 +00:00
config.in
configure
configure.host
configure.in
configure.tgt Update RTEMS targets 2000-12-01 18:28:58 +00:00
deffile.h 2000-10-10 Kazu Hirata <kazu@hxi.com> 2000-10-11 00:16:07 +00:00
deffilep.y
dep-in.sed
gen-doc.texi
genscripts.sh
h8-doc.texi
ld.1 Move GNU Free Documentation License from the output into a comment 2000-11-28 20:40:35 +00:00
ld.h 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ld.texinfo Requre that long options starting with 'o' only accept a double dash prefix. 2000-12-28 19:54:33 +00:00
ldcref.c 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldctor.c
ldctor.h 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldemul.c 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldemul.h 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldexp.c 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldexp.h 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldfile.c 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldfile.h 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldgram.y
ldint.texinfo Add GNU Free Documentation License 2000-11-06 20:27:26 +00:00
ldlang.c Revert the last beautification with "innocent" whitespace, 2000-12-13 18:28:52 +00:00
ldlang.h 2000-10-09 Kazu Hirata <kazu@hxi.com> 2000-10-09 15:09:17 +00:00
ldlex.h Requre that long options starting with 'o' only accept a double dash prefix. 2000-12-28 19:54:33 +00:00
ldlex.l * ldlex.l (yy_create_string_buffer): Init all structure fields. 2000-11-05 06:27:15 +00:00
ldmain.c Add link option to allow undefiedn symbols in shared libraries 2000-12-12 20:53:02 +00:00
ldmain.h
ldmisc.c
ldmisc.h
ldver.c
ldver.h
ldwrite.c
ldwrite.h
lexsup.c Fix problems with new EXACTLY_TWO_DASHES command line switch option. 2000-12-31 19:56:04 +00:00
mac-ld.r
MAINTAINERS
Makefile.am Add support for x86_64-*-linux-gnu* target 2000-11-30 19:30:33 +00:00
Makefile.in Add support for x86_64-*-linux-gnu* target 2000-11-30 19:30:33 +00:00
mpw-config.in
mpw-elfmips.c
mpw-eppcmac.c
mpw-esh.c
mpw-idtmips.c
mpw-make.sed
mri.c 2000-10-10 Kazu Hirata <kazu@hxi.com> 2000-10-11 00:16:07 +00:00
mri.h
NEWS * NEWS: Add note about x86_64 architecture. 2000-12-11 13:49:46 +00:00
pe-dll.c * pe-dll.c (make_one): Do not generate code thunk for DATA 2000-10-10 03:28:01 +00:00
pe-dll.h
README
stamp-h.in
sysdep.h
TODO

This is the GNU linker.  It is distributed with other "binary
utilities" which should be in ../binutils.  See ../binutils/README for
more general notes, including where to send bug reports.

There are many features of the linker:

* The linker uses a Binary File Descriptor library (../bfd)
  that it uses to read and write object files.  This helps
  insulate the linker itself from the format of object files.

* The linker supports a number of different object file
  formats.  It can even handle multiple formats at once:
  Read two input formats and write a third.

* The linker can be configured for cross-linking.

* The linker supports a control language.

* There is a user manual (ld.texinfo), as well as the
  beginnings of an internals manual (ldint.texinfo).

Installation
============

See ../binutils/README.

If you want to make a cross-linker, you may want to specify
a different search path of -lfoo libraries than the default.
You can do this by setting the LIB_PATH variable in ./Makefile.

To build just the linker, make the target all-ld from the top level
directory (one directory above this one).

Porting to a new target
=======================

See the ldint.texinfo manual.

Reporting bugs etc
===========================

See ../binutils/README.

Known problems
==============

The Solaris linker normally exports all dynamic symbols from an
executable.  The GNU linker does not do this by default.  This is
because the GNU linker tries to present the same interface for all
similar targets (in this case, all native ELF targets).  This does not
matter for normal programs, but it can make a difference for programs
which try to dlopen an executable, such as PERL or Tcl.  You can make
the GNU linker export all dynamic symbols with the -E or
--export-dynamic command line option.

HP/UX 9.01 has a shell bug that causes the linker scripts to be
generated incorrectly.  The symptom of this appears to be "fatal error
- scanner input buffer overflow" error messages.  There are various
workarounds to this:
  * Build and install bash, and build with "make SHELL=bash".
  * Update to a version of HP/UX with a working shell (e.g., 9.05).
  * Replace "(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc)" in
    genscripts.sh with "sh ${srcdir}..." (no parens) and make sure the
    emulparams script used exports any shell variables it sets.